Okay. Thanks for all the info guys. I think I am going to stock this in stages so that aggression will not occur. Let me know if this is to much, or if I could possibly do something differently and come out with a better out come. I have a 55 gallon, and in about 2 weeks a indoor pond with about 450 gallons (for smaller turtles). I can use these as growouts and if agression occurs, temporary holding.
Stage one-- Koi. This pretty much has to be part of the deal due to family wanting them. The ones I will get will start off at about 6 inches. I plan on letting them grow to atleast 8 inches before I try and collect other fish.
For stage two I will find a smaller bass, if not two. I also will find decent sized other natives.
If this is overstocked I can defiantly take out some of the bigger fish and put them(Atleast 5 Koi says the mother).